A. L. R.是American Law Reports的缩写，即《美国法律报告》。

《美国法律报告》1919年开始由律师合作出版公司出版，现在由西方集团出版。从1992年起开始出版第五系列（A. L. R. 5th ）。1969年以前A. L. R.的内容一直包括涉及联邦法律问题及州法律问题的判决，从1969年考试不再收录联邦法院的判决。

In American law, the Ameri can Law Reports are a resource used by Ameri can lawyers to find a variety of sources relating to specific legal rules, doctrines, or principles. It is an important tool for legal research. Each ALR volume contains several annotations. An annotation is an article that summarizes the evolution of a very specific legal concept in a concise and precise fashion. The article will either be preceded by the full text of an important relevant case, or in later series, contain a reference to the text of the case, which is reproduced at the end of the volume.